题干
.
It is an established fact that factory workers work better, harder, and have _____ accidents when their machines are painted orange rather than black or gray.
It is an established fact that factory workers work better, harder, and have _____ accidents when their machines are painted orange rather than black or gray.
A：fewer
B：few
C：more
D：le
答案(点此获取答案解析）
A
